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DockOnly™ and Dock Score™ are trademarks of Blue Mar Real Estate Group Inc.

Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker

Blue Mar Real Estate Group Inc.

Licensed Florida Real Estate Broker · DBPR License CQ1018554

4000 Ponce De Leon Blvd, Suite 470, Coral Gables, FL 33146

[email protected]

Listing data is provided by participating Multiple Listing Services and is deemed reliable but not guaranteed. Each listing's MLS source and its required disclosures appear with that listing. Dock Score™ is a DockOnly.com rating and is not provided by or affiliated with any MLS or listing broker. NOAA chart data is public domain and for reference only, not for navigation. Full MLS Compliance

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+20

6403 Gulf Of Mexico Blvd 403

Marathon, FL, 33050

Active

$995,000

6403 Gulf Of Mexico Blvd 403

Marathon, FL, 33050

Active

$995,000

3

Bedrooms

2

Bathrooms

1,902 sqft

Living Area

1983

Year Built

$995,000Tour the dockSchedule a Showing

$5,978

HOA / Quarterly

11

Days on Market

Dock & Water AccessMLS

Ocean AccessOcean Front

Data sources: SFWMD AHED waterway polygons · FHWA National Bridge Inventory 2024 · Not provided by the MLS or listing broker.

Description

Welcome to your Marathon lifestyle package, a fully remodeled 3-bedroom, 2-bath Penthouse offering 1,902 SQFT of luxury coastal living. Rare opportunity includes a 24' boat with marina access w/lifts permitted, combining a move-in-ready residence w/boating lifestyle buyers dream of in the Florida Keys. Designed for comfort and entertaining, this top-floor residence features Versace & marble tile finishes, quartz countertops, New Kitchen & Stainless Steel appliances, New impact windows, 9-ft ceilings, wet bar, private parking, open-concept layout, and wraparound balcony, perfect for tropical breezes, morning coffee, and sunset cocktails. Spacious Primary suite offers balcony access, dual closets & spa-inspired bath w/soaking tub, glass-enclosed shower, makeup station & designer finishes. Enjoy direct marina access & your included 24' boat for fishing, cruising, island hopping & waterfront dining in the Keys. Amenities include covered warehouse storage for your water toys, Lagoon-style pool, jacuzzi, tennis & basketball courts, fitness center, and gated tropical grounds. All located in the heart of Marathon, minutes from Sombrero Beach, Coco Plum Beach, Marathon Airport, Turtle Hospital, Old Seven Mile Bridge & Best waterfront restaurants! World-class boating, fishing, snorkeling & breathtaking sunsets are right outside your door. More than just a Penthouse, this is your private escape, boating base, weekend retreat, future vacation home, and private piece of paradise!

Schedule a Showing

See the property and tour the dock. A licensed waterfront specialist will arrange your private showing.

Select a date

Location

Marathon, FL, 33050

No price history available for this property.

Displayed by Blue Mar Real Estate Group Inc., Licensed Florida Real Estate Broker (DBPR CQ1018554) · [email protected]

Listing courtesy of Nations Best Realty, Inc. via MIAMI REALTORS®

Last updated: 6/19/2026

© 2026 Miami Association of REALTORS®, Inc. All rights reserved. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of the Miami Association of REALTORS®. Information is deemed reliable but not guaranteed. All properties are subject to prior sale, change, or withdrawal.

IDX information is provided exclusively for consumers' personal, non-commercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Nearest Bridge Clearances

Florida Keys, critical for tall/large vessels

No bridge data available for this location.
FEMA Flood Zone AE
BFE: 10ft

Special Flood Hazard Area

View FEMA Flood Map →
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Mortgage Calculator

Estimate your monthly payment for this waterfront property

20%

$199,000 down

%
Principal & Interest$5,163/mo
Property Tax (est. ~1.2%, varies by county)$995/mo
Home Insurance (est.)$250/mo
HOA Fees$1,993/mo
Total Monthly Payment$8,401
Loan Amount: $796,000Rate: 6.75%
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